Home / 1,185,771.82-1,636,363.22-641,907.46

Finding the Fourth Proportional to 1,185,771.82, 1,636,363.22 and 641,907.46

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Solution

The fourth proportional to 1,185,771.82, 1,636,363.22 and 641,907.46 is: 885,831.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,771.82 : 1,636,363.22 = 641,907.46 : x
  2. Step 2: Convert to fraction form
    1,185,771.82/1,636,363.22 = 641,907.46/x
  3. Step 3: Cross multiply
    1,185,771.82x = 1,636,363.22 × 641,907.46
  4. Step 4: Simplify right side
    1,185,771.82x = 1,050,393,758,187.62
  5. Step 5: Solve for x
    x = 1,050,393,758,187.62/1,185,771.82
  6. Step 6: Final answer
    x = 885,831.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.